Temperature indicator



'ec. K M H. CHASE TEMPERATURE INDICATOR filed Aug'-. 20, 1956 INVENTOR HERBERT CHASE ARNEYs v Patented Dec. 13, 19 38 UNITED STATES PATENT @FFEQE 2,139,805 TEMPERATURE INDICATOR.

Herbert Chase, New York, N. Y., assignor to United Specialties Sales Corporation, New York, N. Y., a corporation of Delaware Application August 20, 1936, Serial No. 96,936 2 Claims. (01. 73-378) This invention relates to improved temperature cation foruse when the temperature is observed by indicating devices of inexpensive and simple conlooking toward, instead of through or over, the struction which are adapted principally for use on supporting surface. automobiles and in homes for convenient indica- Referring. to Figs- 1 and mounting member 5 tion of atmospheric temperatures. iii, of rubber or similar resilient material, is

Thermometer constructions are well known in formed with a suction cup I2 and an extension which the thermometer stem is mounted on a M, in which extension a recess or chamber l6-for rigid supporting member and held in the place of the bulb 18 of the thermometer 20 is provided. use by specially constructed brackets, permanent Several ducts 22 lead from the recess Hi to the fastening means, or screws- It is also known to outside of extension M to establish communica- 10 mount a thermometer on an elongated rubber tion between .the bulb and the surrounding atmosbody and to hold said body onto a supporting phere. surface by two or more suction cups fixed to the The mounting member l8 may be formed simply body. The first type of construction enables easy by a. single molding operation, and the therl5 breakage of the tube due to shocks and the like. mometer 2i) may be combined therewith by flexing The second type must be formed with precision the extension M to allow insertion of the bulb l8. to enable permanentfastening of the several suc- An alternative method of combining the mounttion cups so that tension in the rubber body will ing member and the thermometer is to mold the not pull them free, and even if properly conformer around the latter.

structed the body tends to dislodge the cups unless The device of Figs. 1 and 2 may be provided 20 positioned with extreme accuracy. Both types, with one or more scale markings 24 to designate moreover, are unduly complicated and relatively significant temperature conditions. In Fig. 1, p ethe marking 24- indicates a temperature corre- An object of my invention is to provide an imsponding to the freezing point of water.

- 25 proved temperature indicator which includes uni- This device is especially useful to indicate 5 tary means for mounting a thermometer and for weather conditions requiring the addition of an holding the same on a supporting surface and anti-freeze medium to automobile cooling soluwhich is so simple of construction that it may be tions, and it may be positioned on the windshield produced at extremely low cost. or window of the automobile for observation Another object of the invention is to provide through the glass, or on any flat non-transparent 30 an improved construction in which a large porsurface on the outside of the automobile body, as tion of the thermometer stem is freely exposed for illustrated in Fig. 1, so that the driver may observation and the portion adjacent the bulb observe the indicated temperature by looking over is mounted resiliently without destroying the the supporting member. Due to its light weight it exposure of the bulb o t u ou is permanently held in place by the single suction 35 atmosphere. cup. Since the thermometer resiliently Still another object of the invention relates to mounted, shocks occasioned by driving cause the provision of all P S V st uc in neither breakage of the stem nor destruction of which a thermometer s u at d r s pthe suction connection. Since the bulb of the p t g Surface and resiliently mounted- SO that thermometer is mounted in material having poor 40 shocks will not cause breakage. Other objects and. heat conductivity, the recorded temperature is not advantages of the invention Willbeeome pp affected by conduction of heat from the autof m th following s pt ta n in oonneemobile body or by direct exposure to the sun. The

t w h th a mpa y aw forming a bulb, nevertheless, is exposed to the surrounding p hereof, in which! atmosphere, and the thermometer accurately 45 Figure 1 shows, in elevation, an embodiment of i di t atmospheric temperatures. t inv t n adapt p p y for u on the In Fig. 3, I illustrate a modification oi the emoutside of an automobile and shown s applied, bodiment of Fig. 1. Instead of a scale or mark- Figure 2 is a sectional View taken substantially ings on t t r o eter tube 20, a card-like on the line 2-2 of Figure 1, member 26 having scale lines at 21 is positioned 50 Figure 3 is a sectional view of a modification in on the end of t nting member H3 opposite which a device Similar to that of Figure 1 is D the suction cup E2. The member 26 may be of Vided With e Card-like member for a temperature metal, glass, cardboard or any other inexpensive scale; and material capable of being formed in thin sheets.

Figure 4 is a perspective view of another modifi- It is provided with an opening 28 of a size to be 55 received and held by the annular groove 30 in the extension l4 of mounting member ID, but surficiently large to enable insertion of the end 34 of said extension when the end is compressed. The card-like member obviously may be secured to the mounting means ID in other ways, for example, it might be connected to the end thereof by a staple.

As an additional embodiment of the invention I illustrate in Fig. 4 an arrangement for use in the interior of an automobile, room or the likein fact, for any use wherein the indicating means is positioned between the supporting surface therefor and the observer. In this embodiment the mounting member may be formed as shown and described in connection with Figs. 1 and 2. Between the stem of the thermometer 2B and the suction cup I 2 is positioned a card-like member 49 having scale readings 42 thereon to designate the temperatures recorded by the thermometer. In Fig. 4, member is shown attached to the thermometer 20 by clips 44. Obviously, however, it might be secured independently to the mounting member ID as, for example, by fitting it over member l0 and into a groove therein between the thermometer 20 and cup I2.

An important feature of my invention consists in its extreme simplicity of construction and low cost. In one of its simplest forms the invention includes a single suction cup of resilient material having a backward extension which grips and resiliently holds the thermometer and in which the bulb of the thermometer is mounted in communication with the surrounding atmosphere. This construction requires but two elements, the mounting and gripping member, molded or otherwise formed in a simple manner, and the thermometer which may be inserted into the mounting member after the latter has been formed or during the formation thereof. Due to the simplicity and low cost of the improved device, it may be used to advantage as an advertising medium and distributed at little or no charge.

'While I have described several embodiments of my invention, and several Ways in which it may be used, it is to be understood that the invention is not limited to any particular embodiment or any particular use thereof, but that it is to be construed broadly within the spirit of the disclosure and the scope of the appended claims.

I claim:

1. A temperature indicating device consisting of a resilient body including a suction cup and an extending portion of less diameter than said cup behind the same, a thermometer having its bulb embedded in said portion, said portion including openings establishing communication between the thermometer bulb and the surrounding atmosphere, a member having a scale gauged for said thermometer, said member being mounted on and supported by said extending portion of said suction cup.

2. A temperature indicating device comprising a rubber suction cup and an integral supporting portion also of rubber extending rearwardly therefrom and having a reduced portion to project through a thermometer scale plate, a thermometer scale plate mounted on said extending portion, said cup and extending portion having a recess between the cup and said scale plate, and a thermometeradjacent said scale plate having the bulb extending into said recess.

HERBERT CHASE. 

